sync.blue vs a Google Workspace directory app (no MDM)
sync.blue syncs contacts into the native address book across many sources, often with MDM. Here's when that is right — and when a directory app without MDM is simpler.
Google Workspace already has your people. Phones still do not. Two common fixes:
- Push contacts into the native Contacts app (sync.blue and similar platforms), often via CardDAV and MDM-friendly rollout.
- Give people a directory app that signs in with work Google and stays read-only (Workspace Sync).
This post is for Workspace admins choosing between those shapes — not a feature laundry list.
What sync.blue optimizes for
sync.blue is a broad contact-sync platform (80+ sources). For mobile, it typically delivers contacts into the native iOS/Android address book, with CardDAV, caller ID, and MDM-friendly deployment. Google Workspace Directory is one connector among many — useful when Directory must also feed a phone system, Microsoft 365, CRM, and phones from one fabric.
That is the right design when:
- Contacts must move across many systems, not only phones
- You want one system address book, not another icon
- Devices are company-owned or already enrolled in MDM
- Compliance packaging (German hosting, formal DPA options) is a purchase requirement
Public pricing (Sep 2026): TEAM ~€19 / month for 1–10 users; MOBILE from 11 users (list price varies). Verify on sync.blue before you buy.
What breaks for teams without MDM
If people use personal phones and the only missing piece is “find a colleague, call or WhatsApp,” a full sync platform plus MDM/CardDAV is heavy. You pay for breadth you may not use, and you still own profiles, replacements, and “why is this on my phone?” support.
A directory app flips the tradeoff:
- Admin connects Google Workspace once (read-only)
- Each person installs an app and signs in with work Google
- Admins choose who is visible and which fields appear
- Call, SMS, and WhatsApp sit on the contact card
- No MDM enrollment for the directory itself
Workspace Sync is built for that path. First 5 users free, then €1 per extra user / month.
Side-by-side
| Question | sync.blue-style | Directory app (Workspace Sync) |
|---|---|---|
| Primary job | Sync across many apps & devices | Google Workspace → team directory app |
| Where do contacts live? | Native address book (CardDAV / MDM) | In the app (+ optional save) |
| MDM? | Supported / common | Not required |
| Field-level privacy? | Platform / list oriented | Per-field admin controls |
| WhatsApp from directory? | Via native Contacts / other apps | One tap in-app |
| Cost shape | TEAM ~€19/mo (1–10); MOBILE from 11 | Per active user (€1 after 5 free) |
Practical recommendation
- Many systems + MDM and you want native Contacts / CardDAV everywhere → evaluate sync.blue (TEAM or MOBILE).
- BYOD / light IT and you only need “our Google Workspace people on every phone” → start with a directory app. Five free seats is enough to prove it on a real team this week.
Related: Workspace Sync vs sync.blue · Pricing · Contactzilla vs directory app